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R. VP. BROWN. PAPER Box.

No. 525,585.l l Patented Sept. 4, 1894.

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UNITED STATES PATENT OFFICE.

ROBERT P. BROVN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HIMSELF AND EDWARD L. BAILEY, OF SAME PLACE.

PAPER BOX.

SPECIFICATION forming part of Letters Patent No. 525,585, dated September 4, 1 894.

Application filed May 23, 1894. Serial No. 512117@ (N0 modem .To all whom, it may concern.'

Se it known that I, ROBERT P. BROWN, a citlzen of the United States, residing in the city and county of Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Paper Boxes, of whichthe following is a true and exact descrlption, reference being had to the accompanylng drawings, which form a part thereof.

My invention relates to knock-down paper or cardboard boxes, and has for its main ob- Ject to provide a box which, when set u p, will be very lirm and sti.

My invention is best explained in connectron with the accompanying drawings, in which- Flgure lis a view of the blank, which,when set up, forms the box. Fig. 2 is a perspective view of the box.y partly set up; a portion of one side being torn away to show the mode of fastening the ends. Fig. 3 is a transverse vertical section of the box when completely setup. Fig. 4 is a. detail view of a modification, showing how the locking ap at the extremlty of the end pieces may be dispensed with; and Fig. 5 shows a completed box with one form of cover therefor. Y

B is the blank, from which the ,improved box 1s constructed, and consists of a bottom piece C, and side and end flaps A A D D.

The bottom piece C is provided with tonguesw c c formed by cuts c2 c2; these tongues are formed near the ends of the bottom piece and are designed to lock the end pieces, as will be explained. The side-flaps A A have wings a a, extending from each extremity, as shown, whlch wings are adapted to form part of the ends of the box. The end-naps D D consist, as shown in Figs. 1, 2 and 3, of portions cl d, d CZ and d2 d2, score marks e e being preferably provided to cause the material to bend 1n the proper places. The parts d d are adapted to fold up outside of the wings a a; when these are folded, substantially as shown in Fig. 2, the parts d d fold inside of the wings a a and the locking iiaps d2 d2 are then caught under the tongues c c locking the whole end in place.

It will be noted that, as the wings a a are folded under the end flaps D D, the sides A A are held in position thereby, and also that there are three thicknesses of material at the ends, thus making a very stift box; one of the thicknesses of the material, namely the l'laps CZ d fits inside the box and further stiiens it.

In some cases it may not be necessary to provide the tongues c c, but simply bend down the aps d d inside the box.- I prefer, however, to provide these tongues c c, even if the locking flaps d2 d2 are omitted, since, as seen in Fig. 4, if the tongues c c are arranged at the extremities of the bottom C, they will engage With and hold in place theV parts d d of the end flaps in the manner shown in Fig. 4. Suitable score marks, such as are indicated at a2 c', may, of course, be provided Where necessary.

I also contemplate, in some cases, to form flaps G integral with the sides A A, as shown in dotted lines in Fig. l; these, when folded down as shown in Fig. 5, not only serve to give thebox an ornamental appearance, but also serve to prevent small articles, such, for instance,

as matches, if the boxes are used to hold Y these, from readily falling out, taking the place of the independent piece of paper or cardboard often used for that purpose.

In Fig. 5 I have shown the completed box provided with a slide cover F; it will, of course, be understood that any suitable cover' can be employed.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. -A knock-down box having a b ottom `C with tongues c c formed therein, sides A provided With wings a a extending from both extremities of said sides, and adapted to form part of the ends of the box, and end iiaps D consisting of parts d d adapted, when the box is set up, to fold outside of the wings a a,

and parts d d adapted to fold inside of the wings ct a and be held in position by the tongues c c, all substantially as specied.

2. A knock down box having a bottom C,

sides A provided with wings@ a extending from both extremities of said sides and adapted to form part of the ends of the box, end iaps D consisting of parts d d adapted when the box is set up to fold outside of the wings a a, parts d d adapted to fold inside of the wings a a and locking flaps cl2 d2 and a. suitable lock adapted to engage with the locking flaps d2 cl2 and hold the ends in place.

.3. A knock-down box having a bottom C with tongues c c formed therein, sides A provided with win gs a a extending from both extremities of said sides and .adapted to form part of the ends of the box and end flaps D consisting of parts d d adapted, when the boX is set up, to fold outside of the Wings a a and parts d d adapted to fold inside of the wings a a, and iiaps d2 d2 adapted to extend under the tongues c c, all substantially asv specified, and so that firm and stiff ends will` be formed from the folds d d and Wings a a. 4. A knock-down paper boX having sides A ROBERT P. BROWN.

Witnesses:

EDWARD F. AYRES, D. STEWART. 

